core: Make a new tracking issue for prelude traits

The referenced issues here were both closed, so hook up a new issue which tracks
specifically the prelude traits being unstable.

src/libcore/char.rs

@@ -255,7 +255,7 @@ pub fn from_digit(num: u32, radix: u32) -> Option<char> {
 #[doc(hidden)]
 #[unstable(feature = "core_char_ext",
            reason = "the stable interface is `impl char` in later crate",
-           issue = "27701")]
+           issue = "32110")]
 pub trait CharExt {
     #[stable(feature = "core", since = "1.6.0")]
     fn is_digit(self, radix: u32) -> bool;

src/libcore/num/f32.rs

@@ -141,7 +141,7 @@ pub mod consts {
 
 #[unstable(feature = "core_float",
            reason = "stable interface is via `impl f{32,64}` in later crates",
-           issue = "27702")]
+           issue = "32110")]
 impl Float for f32 {
     #[inline]
     fn nan() -> f32 { NAN }

src/libcore/num/f64.rs

@@ -141,7 +141,7 @@ pub mod consts {
 
 #[unstable(feature = "core_float",
            reason = "stable interface is via `impl f{32,64}` in later crates",
-           issue = "27702")]
+           issue = "32110")]
 impl Float for f64 {
     #[inline]
     fn nan() -> f64 { NAN }

src/libcore/num/mod.rs

@@ -2209,7 +2209,7 @@ pub enum FpCategory {
 #[doc(hidden)]
 #[unstable(feature = "core_float",
            reason = "stable interface is via `impl f{32,64}` in later crates",
-           issue = "27702")]
+           issue = "32110")]
 pub trait Float: Sized {
     /// Returns the NaN value.
     #[unstable(feature = "float_extras", reason = "needs removal",

src/libcore/slice.rs

@@ -61,7 +61,7 @@ use raw::Slice as RawSlice;
 /// Extension methods for slices.
 #[unstable(feature = "core_slice_ext",
            reason = "stable interface provided by `impl [T]` in later crates",
-           issue = "27701")]
+           issue = "32110")]
 #[allow(missing_docs)] // documented elsewhere
 pub trait SliceExt {
     type Item;
@@ -182,7 +182,7 @@ macro_rules! slice_ref {
 
 #[unstable(feature = "core_slice_ext",
            reason = "stable interface provided by `impl [T]` in later crates",
-           issue = "27701")]
+           issue = "32110")]
 impl<T> SliceExt for [T] {
     type Item = T;
 

src/libcore/str/mod.rs

@@ -1561,7 +1561,7 @@ mod traits {
 #[doc(hidden)]
 #[unstable(feature = "core_str_ext",
            reason = "stable interface provided by `impl str` in later crates",
-           issue = "27701")]
+           issue = "32110")]
 pub trait StrExt {
     // NB there are no docs here are they're all located on the StrExt trait in
     // libcollections, not here.